I don't know what they have in BG's duty-free shop, but make sure that your airline allows wine to be carried on before you spend time picking out bottles. On one of my previous flights, I spent an hour in the duty free shop to select 4 bottles of wine I couldn't get at home for my husband and me to carry on. Got to the cash register, and when they asked what flight, they told us that airline did not allow bottles to be brought on. The airline was Continental, which is no longer in business (for unrelated reasons, presumably!), but just check. El Al did allow bottles on board.

The BG duty free website has been recently updated: dutyfree.co.ilThe prices there vary, some higher than in local stores, some are the same. However, they have a good deal of 3+1 without limiting buying the same wine. The "free" bottle is the cheapest of the four.Moet Chandon Rose and a regular one are a good deal compared to local prices.

The "buy three get the fourth free," i.e., 3+1, can often make buying wine at duty free a reasonable deal. The problem is that if you are buying and traveling alone, the four bottles are more than most countries' customs laws will allow you to bring in for free.

I have friends who have not declared the four bottles and been caught and paid fines that made the 3+1 a very expensive deal. Others' have declared the four bottles and been allowed to pass without paying extra. It's a calculated risk. I haven't bought wine at duty free in ages, but in my limited browsing experience, unless you avail yourself of the 3+1 deal, there are few bargains.